Exemple #1
0
// parse the hosts.txt file to create a separate list (and file)
// of physical nodes and virtual nodes. Such that each host on line i, in phys.txt
// corresponds to each host on line i, in virt.txt.
func (d *Deter) readHosts() {
	hosts_file := d.DeployDir + "/hosts.txt"
	nmachs, nloggers := d.Config.Nmachs, d.Config.Nloggers

	physVirt, err := cliutils.ReadLines(hosts_file)
	if err != nil {
		log.Panic("Couldn't find", hosts_file)
	}

	d.phys = make([]string, 0, len(physVirt)/2)
	d.virt = make([]string, 0, len(physVirt)/2)
	for i := 0; i < len(physVirt); i += 2 {
		d.phys = append(d.phys, physVirt[i])
		d.virt = append(d.virt, physVirt[i+1])
	}
	d.phys = d.phys[:nmachs+nloggers]
	d.virt = d.virt[:nmachs+nloggers]
	d.physOut = strings.Join(d.phys, "\n")
	d.virtOut = strings.Join(d.virt, "\n")
	d.masterLogger = d.phys[0]
	// slaveLogger1 := phys[1]
	// slaveLogger2 := phys[2]

	// phys.txt and virt.txt only contain the number of machines that we need
	dbg.Lvl3("Reading phys and virt")
	err = ioutil.WriteFile(d.DeployDir+"/phys.txt", []byte(d.physOut), 0666)
	if err != nil {
		log.Fatal("failed to write physical nodes file", err)
	}

	err = ioutil.WriteFile(d.DeployDir+"/virt.txt", []byte(d.virtOut), 0666)
	if err != nil {
		log.Fatal("failed to write virtual nodes file", err)
	}
}
Exemple #2
0
func getDebugServers() []string {
	// read in physical nodes and virtual nodes into global variables
	phys, err := cliutils.ReadLines("phys.txt")
	if err != nil {
		log.Errorln(err)
	}
	virt, err := cliutils.ReadLines("virt.txt")
	if err != nil {
		log.Errorln(err)
	}

	// create mapping from virtual nodes to physical nodes
	vpmap := make(map[string]string)
	for i := range phys {
		vpmap[virt[i]] = phys[i]
	}

	// now read in the hosttree to get a list of servers
	cfg, e := ioutil.ReadFile("tree.json")
	if e != nil {
		log.Fatal("Error Reading Configuration File:", e)
	}
	var cf config.ConfigFile
	err = json.Unmarshal(cfg, &cf)
	if err != nil {
		log.Fatal("unable to unmarshal config.ConfigFile:", err)
	}

	debugServers := make([]string, 0, len(virt))
	cf.Tree.TraverseTree(func(t *graphs.Tree) {
		h, p, err := net.SplitHostPort(t.Name)
		if err != nil {
			log.Fatal("improperly formatted hostport:", err)
		}
		pn, _ := strconv.Atoi(p)
		s := net.JoinHostPort(vpmap[h], strconv.Itoa(pn+2))
		debugServers = append(debugServers, s)
	})
	return debugServers
}
Exemple #3
0
func setup_deter() {
	virt, err := cliutils.ReadLines("virt.txt")
	if err != nil {
		log.Fatal(err)
	}
	phys, err := cliutils.ReadLines("phys.txt")
	if err != nil {
		log.Fatal(err)
	}
	vpmap := make(map[string]string)
	for i := range virt {
		vpmap[virt[i]] = phys[i]
	}
	nloggers := conf.Nloggers
	masterLogger := phys[0]
	loggers := []string{masterLogger}
	for n := 1; n <= nloggers; n++ {
		loggers = append(loggers, phys[n])
	}

	phys = phys[nloggers:]
	virt = virt[nloggers:]

	// Read in and parse the configuration file
	file, err := ioutil.ReadFile("tree.json")
	if err != nil {
		log.Fatal("deter.go: error reading configuration file: %v\n", err)
	}
	dbg.Lvl4("cfg file:", string(file))
	var cf config.ConfigFile
	err = json.Unmarshal(file, &cf)
	if err != nil {
		log.Fatal("unable to unmarshal config.ConfigFile:", err)
	}

	hostnames := cf.Hosts
	dbg.Lvl4("hostnames:", hostnames)

	depth := graphs.Depth(cf.Tree)
	cf.Tree.TraverseTree(func(t *graphs.Tree) {
		if random_leaf != "" {
			return
		}
		if len(t.Children) == 0 {
			random_leaf = t.Name
		}
	})

	rootname = hostnames[0]

	dbg.Lvl4("depth of tree:", depth)

	// mapping from physical node name to the timestamp servers that are running there
	// essentially a reverse mapping of vpmap except ports are also used
	physToServer = make(map[string][]string)
	for _, virt := range hostnames {
		v, _, _ := net.SplitHostPort(virt)
		p := vpmap[v]
		ss := physToServer[p]
		ss = append(ss, virt)
		physToServer[p] = ss
	}
	dbg.Lvl3("PhysToServer is", physToServer)

	loggerports = make([]string, len(loggers))
	for i, logger := range loggers {
		loggerports[i] = logger + ":10000"
	}

}
Exemple #4
0
func main() {
	deter, err := deploy.ReadConfig("remote")
	if err != nil {
		log.Fatal("Couldn't read config in deter:", err)
	}
	conf = deter.Config
	dbg.DebugVisible = conf.Debug

	dbg.Lvl1("running deter with nmsgs:", conf.Nmsgs, "rate:", conf.Rate, "rounds:", conf.Rounds, "debug:", conf.Debug)

	virt, err := cliutils.ReadLines("remote/virt.txt")
	if err != nil {
		log.Fatal(err)
	}
	phys, err := cliutils.ReadLines("remote/phys.txt")
	if err != nil {
		log.Fatal(err)
	}
	vpmap := make(map[string]string)
	for i := range virt {
		vpmap[virt[i]] = phys[i]
	}
	// kill old processes
	var wg sync.WaitGroup
	doneHosts := make([]bool, len(phys))
	for i, h := range phys {
		wg.Add(1)
		go func(i int, h string) {
			defer wg.Done()
			dbg.Lvl4("Cleaning up host", h)
			cliutils.SshRun("", h, "sudo killall app forkexec logserver timeclient scp ssh 2>/dev/null >/dev/null")
			time.Sleep(1 * time.Second)
			cliutils.SshRun("", h, "sudo killall app 2>/dev/null >/dev/null")
			if dbg.DebugVisible > 3 {
				dbg.Lvl4("Killing report:")
				cliutils.SshRunStdout("", h, "ps ax")
			}
			doneHosts[i] = true
			dbg.Lvl3("Host", h, "cleaned up")
		}(i, h)
	}

	cleanupChannel := make(chan string)
	go func() {
		wg.Wait()
		dbg.Lvl3("Done waiting")
		cleanupChannel <- "done"
	}()
	select {
	case msg := <-cleanupChannel:
		dbg.Lvl3("Received msg from cleanupChannel", msg)
	case <-time.After(time.Second * 10):
		for i, m := range doneHosts {
			if !m {
				dbg.Lvl1("Missing host:", phys[i])
			}
		}
		dbg.Fatal("Didn't receive all replies.")
	}

	if kill {
		dbg.Lvl1("Returning only from cleanup")
		return
	}

	/*
		 * Why copy the stuff to the other nodes? We have NFS, no?
		for _, h := range phys {
			wg.Add(1)
			go func(h string) {
				defer wg.Done()
				cliutils.Rsync("", h, "remote", "")
			}(h)
		}
		wg.Wait()
	*/

	nloggers := conf.Nloggers
	masterLogger := phys[0]
	loggers := []string{masterLogger}
	dbg.Lvl3("Going to create", nloggers, "loggers")
	for n := 1; n < nloggers; n++ {
		loggers = append(loggers, phys[n])
	}

	phys = phys[nloggers:]
	virt = virt[nloggers:]

	// Read in and parse the configuration file
	file, err := ioutil.ReadFile("remote/tree.json")
	if err != nil {
		log.Fatal("deter.go: error reading configuration file: %v\n", err)
	}
	dbg.Lvl4("cfg file:", string(file))
	var cf config.ConfigFile
	err = json.Unmarshal(file, &cf)
	if err != nil {
		log.Fatal("unable to unmarshal config.ConfigFile:", err)
	}

	hostnames := cf.Hosts
	dbg.Lvl4("hostnames:", hostnames)

	depth := graphs.Depth(cf.Tree)
	var random_leaf string
	cf.Tree.TraverseTree(func(t *graphs.Tree) {
		if random_leaf != "" {
			return
		}
		if len(t.Children) == 0 {
			random_leaf = t.Name
		}
	})

	rootname = hostnames[0]

	dbg.Lvl4("depth of tree:", depth)

	// mapping from physical node name to the timestamp servers that are running there
	// essentially a reverse mapping of vpmap except ports are also used
	physToServer := make(map[string][]string)
	for _, virt := range hostnames {
		v, _, _ := net.SplitHostPort(virt)
		p := vpmap[v]
		ss := physToServer[p]
		ss = append(ss, virt)
		physToServer[p] = ss
	}

	// start up the logging server on the final host at port 10000
	dbg.Lvl1("starting up logservers: ", loggers)
	// start up the master logger
	loggerports := make([]string, len(loggers))
	for i, logger := range loggers {
		loggerport := logger + ":10000"
		loggerports[i] = loggerport
		// redirect to the master logger
		master := masterLogger + ":10000"
		// if this is the master logger than don't set the master to anything
		if loggerport == masterLogger+":10000" {
			master = ""
		}

		// Copy configuration file to make higher file-limits
		err = cliutils.SshRunStdout("", logger, "sudo cp remote/cothority.conf /etc/security/limits.d")

		if err != nil {
			log.Fatal("Couldn't copy limit-file:", err)
		}

		go cliutils.SshRunStdout("", logger, "cd remote; sudo ./logserver -addr="+loggerport+
			" -master="+master)
	}

	i := 0
	// For coll_stamp we have to wait for everything in place which takes quite some time
	// We set up a directory and every host writes a file once he's ready to listen
	// When everybody is ready, the directory is deleted and the test starts
	coll_stamp_dir := "remote/coll_stamp_up"
	if conf.App == "coll_stamp" || conf.App == "coll_sign" {
		os.RemoveAll(coll_stamp_dir)
		os.MkdirAll(coll_stamp_dir, 0777)
		time.Sleep(time.Second)
	}
	dbg.Lvl1("starting", len(physToServer), "forkexecs")
	totalServers := 0
	for phys, virts := range physToServer {
		if len(virts) == 0 {
			continue
		}
		totalServers += len(virts)
		dbg.Lvl1("Launching forkexec for", len(virts), "clients on", phys)
		//cmd := GenExecCmd(phys, virts, loggerports[i], random_leaf)
		i = (i + 1) % len(loggerports)
		wg.Add(1)
		go func(phys string) {
			//dbg.Lvl4("running on ", phys, cmd)
			defer wg.Done()
			dbg.Lvl4("Starting servers on physical machine ", phys)
			err := cliutils.SshRunStdout("", phys, "cd remote; sudo ./forkexec"+
				" -physaddr="+phys+" -logger="+loggerports[i])
			if err != nil {
				log.Fatal("Error starting timestamper:", err, phys)
			}
			dbg.Lvl4("Finished with Timestamper", phys)
		}(phys)
	}

	if conf.App == "coll_stamp" || conf.App == "coll_sign" {
		// Every stampserver that started up (mostly waiting for configuration-reading)
		// writes its name in coll_stamp_dir - once everybody is there, the directory
		// is cleaned to flag it's OK to go on.
		start_config := time.Now()
		for {
			files, err := ioutil.ReadDir(coll_stamp_dir)
			if err != nil {
				log.Fatal("Couldn't read directory", coll_stamp_dir, err)
			} else {
				dbg.Lvl1("Stampservers started:", len(files), "/", totalServers, "after", time.Since(start_config))
				if len(files) == totalServers {
					os.RemoveAll(coll_stamp_dir)
					// 1st second for everybody to see the deleted directory
					// 2nd second for everybody to start up listening
					time.Sleep(2 * time.Second)
					break
				}
			}
			time.Sleep(time.Second)
		}
	}

	switch conf.App {
	case "coll_stamp":
		dbg.Lvl1("starting", len(physToServer), "time clients")
		// start up one timeclient per physical machine
		// it requests timestamps from all the servers on that machine
		for p, ss := range physToServer {
			if len(ss) == 0 {
				continue
			}
			servers := strings.Join(ss, ",")
			go func(i int, p string) {
				_, err := cliutils.SshRun("", p, "cd remote; sudo ./app -mode=client -app="+conf.App+
					" -name=client@"+p+
					" -server="+servers+
					" -logger="+loggerports[i])
				if err != nil {
					dbg.Lvl4("Deter.go : timeclient error ", err)
				}
				dbg.Lvl4("Deter.go : Finished with timeclient", p)
			}(i, p)
			i = (i + 1) % len(loggerports)
		}
	case "coll_sign_no":
		// TODO: for now it's only a simple startup from the server
		dbg.Lvl1("Starting only one client")
		/*
			p := physToServer[0][0]
			servers := strings.Join(physToServer[0][1], ",")
			_, err = cliutils.SshRun("", p, "cd remote; sudo ./app -mode=client -app=" + conf.App +
			" -name=client@" + p +
			" -server=" + servers +
			" -logger=" + loggerports[i])
			i = (i + 1) % len(loggerports)
		*/
	}

	// wait for the servers to finish before stopping
	wg.Wait()
	//time.Sleep(10 * time.Minute)
}